• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>RSC Advances >Condensation effect-induced improved sensitivity for SERS trace detection on a superhydrophobic plasmonic nanofibrous mat
【24h】

Condensation effect-induced improved sensitivity for SERS trace detection on a superhydrophobic plasmonic nanofibrous mat

机译：缩合效应诱导在超疏水性等离子体纳米纤维垫上的SERS痕量检测的改善敏感性

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

Although plasmonic nanofibrous mats have received much attention for SERS detection in recent years, plasmonic nanofibrous mats with superhydrophobicity are rarely reported due to the hydrophilic characteristics of Au and/or Ag nanocrystals. The analyte solution usually spreads randomly over a large area based on this hydrophilic characteristic of Au and/or Ag nanocrystals, which severely restricts the improvement of SERS detection sensitivity. Here, we prepared superhydrophobic polymer nanofibers decorated with noble metal nanoparticles with largerly improved sensitivity for SERS detection. The superhydrophobic characteristic of the polymer/noble metal hybrid nanofibrous mat can overcome the random spreading of the analyte aqueous solution over the substrate and enriches the droplet containing analyte molecules on a very small area where a strong plasmonic electric-field was used to carry out SERS detection. About a 14-fold decrease in spot area on our superhydrophobic substrate leads to a corresponding 8-fold improvement in the lowest detection concentration for rhodamine 6G molecules, as compared to a non-superhydrophobic substrate.
机译：虽然近年来，等离子体纳米纤维垫片对SERS检测有很大的关注，但由于Au和/或Ag纳米晶体的亲水性特性，很少报道具有超疏水性的​​血浆纳米纤维垫。分析物溶液通常基于Au和/或Ag纳米晶体的这种亲水性特性随机地在大面积上涂布，这严重限制了SERs检测灵敏度的改善。在这里，我们制备了具有贵金属纳米颗粒装饰的超疏水聚合物纳米纤维，具有大量提高的SERs检测灵敏度。聚合物/贵金属杂交纳米纤维垫的超疏水性特征可以克服分析物水溶液对基材上的随机扩散，并在使用强大的等离子体电场进行SERS的非常小的区域上富集含有分析物分子的液滴检测。与非超疏水底物相比，在超疏水基板上的斑点区域的斑点区域减小约为14倍，导致罗丹明6g分子的最低检测浓度的相应的8倍改善。

著录项

  • 来源
    《RSC Advances》 |2017年第70期|共7页
  • 作者

    Liang Xiaohong; Zhang Han; Xu Cheng; Cao Ding; Gao Qiang; Cheng Si;

  • 作者单位

    Soochow Univ Coll Chem Chem Engn &

    Mat Sci Suzhou 215123 Jiangsu Peoples R China;

    Soochow Univ Coll Chem Chem Engn &

    Mat Sci Suzhou 215123 Jiangsu Peoples R China;

    Soochow Univ Coll Chem Chem Engn &

    Mat Sci Suzhou 215123 Jiangsu Peoples R China;

    Soochow Univ Coll Chem Chem Engn &

    Mat Sci Suzhou 215123 Jiangsu Peoples R China;

    Jiangnan Univ Minist Educ Key Lab Ecotext Wuxi 214122 Peoples R China;

    Soochow Univ Coll Chem Chem Engn &

    Mat Sci Suzhou 215123 Jiangsu Peoples R China;

  • 收录信息
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 化学;
  • 关键词

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号